CVE-2020-10593

HIGH

Tor <0.3.5.10, 0.4.x <0.4.1.9, 0.4.2.x <0.4.2.7 - DoS

Title source: llm

Description

Tor before 0.3.5.10, 0.4.x before 0.4.1.9, and 0.4.2.x before 0.4.2.7 allows remote attackers to cause a Denial of Service (memory leak), aka TROVE-2020-004. This occurs in circpad_setup_machine_on_circ because a circuit-padding machine can be negotiated twice on the same circuit.

References (4)

Scores

CVSS v3 7.5
EPSS 0.0122
EPSS Percentile 78.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE
CWE-401
Status published

Affected Products (3)

torproject/tor < 0.3.5.10
opensuse/backports_sle
opensuse/leap

Timeline

Published Mar 23, 2020
Tracked Since Feb 18, 2026